diff --git a/app/src/main/cpp/yolov8ncnn.cpp b/app/src/main/cpp/yolov8ncnn.cpp
index a441009..7e1174f 100644
--- a/app/src/main/cpp/yolov8ncnn.cpp
+++ b/app/src/main/cpp/yolov8ncnn.cpp
@@ -56,6 +56,57 @@
     return 0;
 }
 
+static int draw_fps(cv::Mat &rgb) {
+    // resolve moving average
+    double avg_fps = 0.f;
+    {
+        static double t0 = 0.f;
+        static double fps_history[10] = {0.f};
+
+        double t1 = ncnn::get_current_time();
+        if (t0 == 0.f) {
+            t0 = t1;
+            return 0;
+        }
+
+        double fps = 1000.f / (t1 - t0);
+        t0 = t1;
+
+        for (int i = 9; i >= 1; i--) {
+            fps_history[i] = fps_history[i - 1];
+        }
+        fps_history[0] = fps;
+
+        if (fps_history[9] == 0.f) {
+            return 0;
+        }
+
+        for (double i: fps_history) {
+            avg_fps += i;
+        }
+        avg_fps /= 10.f;
+    }
+
+    char text[32];
+    sprintf(text, "FPS=%.2f", avg_fps);
+
+    int baseLine = 0;
+    cv::Size label_size = cv::getTextSize(text, cv::FONT_HERSHEY_SIMPLEX, 0.5, 1, &baseLine);
+
+    int y = 0;
+    int x = rgb.cols - label_size.width;
+
+    cv::rectangle(rgb,
+                  cv::Rect(cv::Point(x, y),
+                           cv::Size(label_size.width, label_size.height + baseLine)),
+                  cv::Scalar(255, 255, 255), -1);
+
+    cv::putText(rgb, text, cv::Point(x, y + label_size.height),
+                cv::FONT_HERSHEY_SIMPLEX, 0.5, cv::Scalar(0, 0, 0));
+
+    return 0;
+}
+
 static Yolo *yolo_ptr = nullptr;
 static ncnn::Mutex lock;
 static JavaVM *jvm_ptr = nullptr;
@@ -87,6 +138,9 @@
             draw_unsupported(rgb);
         }
     }
+
+    //实时显示画面FPS值
+//    draw_fps(rgb);
 }
 
 static MyNdkCamera *camera_ptr = nullptr;